Improved bed-bottom



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Letters Patent Aro. (37,585, dated August. 6, 1867.

IMPROVED BED-BOTTOM.

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TO ALL WHOM IT MAY CONCERN:

Be itl known that I, GEORGE W. ROBBINS, of Fond du Lac, in the county ofFond du Lac, and State of Wisconsin, have invented certain new anduseful Improvements in Bed-Bottoms; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, making part of thisspecification, and to the letters of reference marked thereon, like'letters indicating like parts wherever they occur. l i

To enable others skilled in the art to construct and use my invention, Iwill proceed to describe it.

vMy invent-ion relates to spring-bottoms for beds, and consists of nnovel arrangement for making them 'spring evenly. vIn the drawings-Figure 1 is a top plan view, and

Figure 2 is va, longitudinal vertical section on the line :t: .1t offig. l. i

I construct .my bed-bottom of a frame sufficiently strong For thepurpose, and consisting of two side pieces A'and three cross-picesrB, asshown in fig. I. On the middle cross-piece B, I place :it equaldistances spirai springs C, and on each one of the springs C, I place aslat, D, withV its centre on the spring C, and running lon itudinallv. Iconnect the ends of' each ofthe slats D to the crossiicces E bv means ofthe C-s rines I", as

g t l t l n shown in fig. 2. The cross-pieces F, I rest upon and fastenVto the ends oi' the boards G, which are fastened attheir cent-res tothe crossieee B on its under side. The boards G ma f he strenfthenel,and the snrinf` of their v p n D ends upon which the cross-pieces E restmay be stift'ened, by means of the small board a fastened l,to them, as

shown in g. 2. c

It ivill be noticed that whenever any weight bears upon the shits D, itis borne equally by all the springs, and the slats and springs take theposition shown by the red lines in fig. 2. By this construction andarrangement I am enabled to make a bed-bottom having a uniformelasticity over its whole surface, and at the same time simple, cheap,and durable.

Having thus described my invention, what I claim is -A bed-bottomconsisting of the spiral springs C, slats D, G-springs F, andspring-boards G, when arranged to operate as described and for thepurpose set forth.

GEORGE W. ROBBINS.

Witnesses:

H. M. lIAMtL'roN, L. G. M. ALcU'rT.

